Fixture for supporting and gauging brush riggings of motors and generators



l Oct. 12, 1948. H. E. KRUEGE R 2,450,897 FIXTURE FoRvsUPPORTING AND GAUGINGVBRUSH RIGGINGS 0F MOTORS AND GENERATORS Filed Oct. 26, 1945 2 Sheets-Sheet 1 mi' @ya ATTORNEY Oct. 12, 1948'. H. E. KRUEGER 2,450,897

v FIXTURE FOR SUPPORTING AND'GAUGING BRUSH RIGGINGS 0F MOTORS AND-GENERATORS- Filed oct. 26, 1945 v 2 sheets-Shana INVENTOR ATTORNEY HERE EET E." KRUEEEB on either'4 side of' its Patented Oct. 12, 1948 FIXTURE FOR SUPPORTING AND GAUGING BRUSH RIGGINGS OF MOTORS AND GEN'- ERATORS Herbert' E. Krueger, Vallejo, Calif; Application October 2Q, 1945, Serial No. 624,924:k s claims. (C1. 33-181') (Granted under the act of March amended April 30, 1928; 370 0.

This invention relates to supporting fixtures and more particularlyto adjustable fixtures for checking and setting thebrush riggings of motors and generators.

An objectA ofV the. invention is tov provide an improved supporting iixture of such constructionas willpermit thev accurate checking and setting. of -substantially all types of brush riggings, brackets,A yokesl andV brush boxes ofv motors and generators.

Other objects ofthe invention are to provide an. improvedV supporting iixture, of the character described', whereininaccuracies in the director angular, relation. of.' the brush rigging, brackets, yokes and brushv boxes to the commutator may be. readily ascertained;` to provide an improved supporting xture which is particularly adaptable. for/use in connection with large brush riggings of' the'v main; propulsion motors and generatorsof submarines; to provide an improved supportingxture of the character described which Y is;readilyjadjustable so asv to accommodate brush riggings and' yokesv ofvarious size; and' to provide improved elements and arrangements thereof in a supporting'fxture of the characterv described arrdior'theA purposes set forth.

3,. 1883', as G. 757) the slot of the arm.. The bolts 8A are carried by a flanged collar or cap `S-which isV mounted upon the upper end of the legv B and confined vbetween inner, upper portion In accomplishing these and other objects of V the present invention, I` have provided improved details of structure, 'the preferred formr of which is illustrated in the accompanying drawings, wherein:l f

Fig. 1 isv a topA plan view of a portion of a sup,- porting, xture embodying the features of the present invention.

Fig. 2 is an enlarged, transverse, vertical, sec'- tional view, taken on the line 2-2 of Fig.` 1.

Fig. 3 is an, enlarged,` transverse, vertical, sectional view, taken on the line 3-3 of Fig. l'.

Fig; l` is a transverse, vertical, sectional'view, taken on the line 4--4 of'Y 1'. v v

Referring more in detailV to the drawings: In Fig. l, the numeral I designates a tripodal base or framev having an annular, central plate or 'ring' 2 and atriol of radial members or arms Siprojecting outwardly from theV ring preferably Vin equally-spaced relation. Each" arm 3 is preferably of channel shape and has a central, longitudinal opening or slot 4 extending substantially throughout the length thereof. A pairiof 'flat bars l'un'derlie4 the longitudinal margins ci eaclrarm slot 4' for reinforcing the arm. A vertical. post or legY 6, havingA a caster ball 1 fat Vitslower end; isv disposedV beneath. and

adjustablyy secured to' each arm by a pair.' of shortv boltsori screws 8' which, projectr through the longitudinal.,margins of the vchannel.-shaped arm.,

For supporting. then yoke (not shown)y ot Ya brushv rigging,v an upstanding.y supporting member. or. block.. I'Il iszcarried by each arm Band-Jis adiustable longitudinally threaded into the bottoms ofsaid blocks as shown in Fig. 4, whereby the blocks are movable along the arms with the legst. Each block includes a fiat, base. plate .II upon which a vertical plate I2 is weldedv or' otherwise secured. The latter is reinforcedkk by lateral buttress plates I3'which are welded. or otherwise secured to the plates" H and I2. A shoulderl'isformed at'the upper .end of each block by recessing or removingv the thereof, and this'shoulder is adapted to support the` yoke of the brush rigging. n order to provide a minimum'contact point for the-yoke, a suitabley upright screw I5 is recessed inf thefvertical face of the shoulder I-4.

The base ring 2 has -a depending collar IB and is adapted torotatably receive an upright, cylindrical supporting arbor or spindle I'I (Fig. 42). An annular plate or flange I8 is formedintermediate theends of 'the spindle I'I'so as to overlie and rest upon 'the basering, while the shank or lower portion I9' of said l spindle is: journaled within the ring collar' I6 andi is held against upward displacement by a' suitable nutv 2`screw threaded upon the: lower' portion thereof. The upper extremityof the.i spindle is of enlarged diameter and isslotted transversely for: sli'dably receiving ai radial# gage arm 21|. A pair of'nuts 22 are screw threaded upon-.the enlarged upper extremity ofthe spindle, above and; below the gagearm 2l, so as to clamp saidv arm' in radially adjusted positions. Oneend of the gagearm carries; a perpendicular gagebar or blade23j= which isffastened thereto by a suitable collar 2t;

Above the gage arm, an angular centering head 25 is rotatably mounted on the. upper end' of thespindle. Il for slidably receiving a1 radial scale bar.- 26i having graduations thereon. The-latter isheld in adjusted radial positions bymeans Yof thereof.. It. isY prefer able. tofasten theblocks Il! in adjustedJposif/ tions by means, of the boltsV i3v which are. screw 3 4 l5 of the blocks I0 in adjusting the positions of vented by detents 51 which engage in recesses the latter. 53 formed in the base ring.

As is clearly shown in Figs. 2, 3, and 4, the spindle flange l has its external periphery Operation stepped or o'set to provide a pair of concen- 5 The ODSIalOD 0f a SUPDOImg fixture C011- mc, horizontal Shoulders 3i and 32 An Outer structed as described herein ls as follows:

finnuius or ring 33, having ein inner peripheral T116 @Iimnlfj 0f L l A l lll [l )Illini u i l I( i mili. liiiibiiiii iii Giiiiiiiil 0l (lll. l

l D t y 'I' mmm 0L MUR gg mmh J i iimcioq i2 qiiciipiii IJGLGliI il ill [Ollillll iiic poiiioiipiii 2p zpebbeq oi. cuasi p0 to radially for maintaining slidably carried by a portion and maintain;-afbrushrigging in a xed position, the frame including an annularplate secured to and joining the innerv ends of said'arms, an upright support having a circular flange rotatably mounted in the plate, a radial carried by the upper portion of the support at a right'y agle thereto, clampv means for `fastening the gagey arm in radially adjusted positions, a protractorv ring encircling the peripheri'fv of said plate and rotatable relative thereto, means for clamping the protractor ring in a fixed position relative to the plate, a coaxial ring rotatably mounted on the support flange and having a radial pointer cooperating with said protractor ring, means for clamping the coaxial ring in a fixed position relative to said support flange whereby the pointer travels along the protractor ring upon rotation of said support, an annulus rotatably mounted upon the support ange and concentrically surrounding the support flange and coaxial ring, means for eclamping the annulus to said coaxial ring whereby said annulus is rotatable therewith, the annulus having equallyspaced openings in its outer periphery, a retractable spring-pressed latch secured to the upper surface of the plate and adapted to engage within the openings of said annulus for maintaining the latter in a xed position relative to said plate, and a radial scale slidably carried by the upper portion of the support for adjusting the positions of the supporting legs and blocks.

2. A supporting xture including, an annular base, the base having horizontal radial arms, a vertical leg underlying and supporting each arm, a block adjustably fastened to and movable longitudinally of each arm, the blocks coacting with one another to maintain a brush rigging in a nxed position, an arbor rotatably vertically mounted in the base and having a circular ange, a radial gage arm slidably carried by the upper portion of the arbor, a protractor ring rotatably mounted upon and encircling the periphery of the base, a lock ring rotatably mounted on the flange of said arbor, means for fastening said lock ring thereto in adjusted xed positions, the lock ring having a pointer cooperating with the protractor ring, an annulus rotatably mounted upon the arbor and concentrically surrounding the arbor and said lock ring, the latter having means for adjustably fastening said arbor and annulus whereby the lock ring, arbor and annulus may be rotated together or relative to each other, said annulus having recesses formed therein, and latch means carried by the base and adapted to engage within the annulus recesses for locking said annulus in adjusted positions relative to said base, the engagement of the latch means within one of said recesses preventing rotation of the arbor when the lock ring is fastened to the annulus and said arbor.

3. A supporting iixture including, a base having an annular portion and outwardly-directed radial portions, supporting means adjustably fastened to the radial portions and movable relative therebrush riggings of various diameters in xed positions, a support rotatably mounted axially in and extending axially i from the annular portion of the base, .a gage arm of the support axially remote from said annular portion of said base, an annular protractor element rotatably mounted upon said annular base portion,l a iirst annular member rotatably mounted on said support and having pointer means cooperating with the protractor element, a second annular member rotatably mounted on, the support, retractable` means carried by the annular base portion for locking the second member against rotation inadjusted positions, and means for adjustably fastening the rst member to said support and second member whereby the supports and members may be rotated together ornrelative to each other.

4. Asupportingxture including a base, support means mounted on said base and adjustable relative Vthereto radially of an axis extending from said base, gage supporting means rotatably mounted on said base for motion about said axis and having a portion extending axially along said axis from said base, a radial gage carried by a portion of said gage support means remote from said base, a protractor element carried by the base, a rst member rotatably mounted on said gage supporting means and having pointer means cooperating with the protractor element, a second member rotatably .mounted on the gage supporting means, means for locking the second member to the rst member and said gage supporting means whereby the same may be rotated relative to each other or together, and means carried by said base for locking said second member against rotation.

5. A supporting iixture including a base, support means mounted on said base and adjustable relative thereto radially of an axis extending from said base, gage supporting means mounted on said base for rotation relative thereto about said axis, a gage carried by said gage supporting means and extending radially of said axis, a pair of r0- tatable members concentric with saidaxis and mounted on said gage supporting means, one of the members having index means, a protractor element carried by the base for cooperating with the index means, means for locking said members to each other and to the gage supporting means whereby the same may be rotated relative to each other or together, and means for locking one oi the members against rotation relative to said base.

6. A supporting xture for brush riggings ncluding a base, supports mounted on said base and adjustable radially thereof relative to an axis extending from said base, a rotatable element mounted on lsaid base, gage means carried by said element extending radially of said axis, a pair of rotatable members mounted on said element means for locking the members to each other and the element whereby said members and element may be rotated relative to each other or together, and means for locking one of the members against rotation relative to said base.

7. A supporting xture including a base, support means mounted on said base and adjustable relative thereto radially of an axis extending from said base, rotatable supporting means mounted on said base, a gage carried by said rotatable supporting means and extending radially of said axis, a pair of rotatable membersgconcentric with said axis and mounted on said rotatable supporting means, one of the members having index means,

a protractor element carried by the base for cooperating with the index means, means for locking said members to each other and to the rotatable supporting means whereby the same may be rotated relative to each other or together, and means carried by said base for coasting with one of the members to ber and lock the same in adjusted positions.

3. A supporting fixture for brush riggings including a base, supports mounted on said base and adjustable relative thereto radially about an axis extending from said base, a rotatable Velement limit rotation of said memmounted on said base, gage means carried by said element and extending radially of said axis, a pair of rotatable members mounted on said element, means for locking the members to each other and the element whereby said members and element may be rotated relative to each other or together, and means carried by said base for coasting with one of the members tolmit rotation of said member and lock the same in adjusted positions.

HERBERT E. KRUEGER.

The following referen le of this patent:

Number REFERENCES CITED ces are of record in the UNITED STATES PATENTS 

